Note that compiling LLVM can take quite a while. If you have a machine with
multiple cores, which is quite likely, you might want to speed up the
process by using all/more cores. However, doing this can make your machine
unresponsive during compilation. To use multiple cores pass the `-j N'
option, where `N' stands for the number of cores you'd like to use.
So for a Dore Duo the command would look like: